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Altera_Forum
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9 years ago

Timing violations on internal nodes - how to fix them ?

Hello, TimeQuest Analyzer reported 63 "Setup" violations, and all of them are located on internal nodes. Does exist some strategy to fix internal nodes timing violations, e.g. add some constr...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
9 years ago

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What do you mean by "internal nodes"? Internal to what?

Setup violations usually occur because there is too much logic between registers. The easiest fix is to add extra pipeline stages on these paths in your HDL.

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Thanks Tricky,

I mean "internal-to-internal".

Here is "Top Failing Paths":

https://www.alteraforum.com/forum/attachment.php?attachmentid=14179

These paths come from from sdram controller IP.

add extra pipeline stages ... you mean edit IP code ?